Long-term stability of SLED as a lightsource for fiber optic sensors

A. T. Semenov; Vladimir R. Shidlovski; Dmitry R. Shidlovski

doi:10.1117/12.372996

9 December 1999 Long-term stability of SLED as a lightsource for fiber optic sensors

A. T. Semenov, Vladimir R. Shidlovski, Dmitry R. Shidlovski

Proceedings Volume 3860, Fiber Optic Sensor Technology and Applications; (1999) https://doi.org/10.1117/12.372996
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

In this report we summarize the first, to our knowledge, results on complex analysis of long-term stability of medium power 820 nm band superluminescent diodes (SLEDs, or SLDs) and singlemode fiber pigtailed modules. Up to 100,000 h MTTF was estimated from accelerated and nominal operation tests of emitters and modules in constant current (ACC) mode; less than 1000 ppm changes of mean wavelength over 30,000 h of operation are predicted from these tests. It is sown that constant power (APC) driving may result in considerable lifetime increasing; lifetime estimations from tests results in APC lifetime 300,000 hours, that is comparable to laser diodes. Twice less wavelength changes, 500 ppm, were obtained in case of APC driving of SLDs.

Citation Download Citation

A. T. Semenov, Vladimir R. Shidlovski, and Dmitry R. Shidlovski "Long-term stability of SLED as a lightsource for fiber optic sensors", Proc. SPIE 3860, Fiber Optic Sensor Technology and Applications, (9 December 1999); https://doi.org/10.1117/12.372996

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